多体气动弹性系统超声速颤振分析

许斌; 张文; 马建敏

doi:10.21656/1000-0887.370114

多体气动弹性系统超声速颤振分析

doi: 10.21656/1000-0887.370114

¹上海机电工程研究所, 上海 201109;²复旦大学力学与工程科学系, 上海 200433

基金项目: 国家自然科学基金(11202052)；上海市自然科学基金(14ZR1420900)

详细信息

作者简介:
许斌(1981—)，男，高级工程师，博士(通讯作者. E-mail: xubin@fudan.edu.cn);张文(1940—)，男，教授;马建敏(1959—)，男，教授，博士.

中图分类号: O313.7;V215.3
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出版历程
- 收稿日期: 2016-04-14
- 修回日期: 2016-05-29
- 刊出日期: 2016-10-15

Supersonic Flutter Analysis for Aeroelastic Multibody Systems

¹Shanghai Institute of Mechanical and Electrical Engineering, Shanghai 201109, P.R.China;²Department of Mechanics and Engineering Science,Fudan University, Shanghai 200433, P.R.China

Funds: The National Natural Science Foundation of China(11202052)

摘要

摘要: 对一类多体气动弹性系统超声速颤振问题进行研究.分别采用多体动力学理论、活塞理论建立了弹性结构系统的动力学模型与超声速非定常气动力模型，得到了由微分代数方程表示的多体系统气动弹性动力学方程.通过数值求解微分代数方程的特征值问题，研究了多体系统在平衡位置小扰动运动的稳定性，完成了多体气动弹性系统超声速颤振分析.应用该方法研究了板状翼面及含操纵面翼面的超声速颤振问题，并得到了操纵面处于不同位置时翼面的颤振速度.结果表明，所发展的多体气动弹性系统超声速颤振分析方法，适用于由多个部件组成的工程结构颤振分析.
- 多体系统 /
- 气动弹性 /
- 微分代数方程 /
- 超声速 /
- 颤振
Abstract: The supersonic flutter of aeroelastic multibody systems was investigated. Based on the theory of multibody dynamics and the piston theory for unsteady aerodynamic forces, the governing differential algebraic equations (DAEs) for the aeroelastic multibody system were established. The supersonic flutter analysis was conducted through solution of the eigenvalue problem in the form of DAEs to discuss the stability of the perturbed motion and the equilibrium of the multibody system. The approach was used for the supersonic flutter problems of a plate wing and a wing with control surfaces. The flutter speed of the wing was obtained with the control surfaces in different positions. The agreement between the simulation results and the experimental ones shows that, the present method has high computational accuracy, and is suitable for the flutter analysis of engineering structures consisting of multiple components.
- multibody system /
- aeroelasticity /
- differential algebraic equation /
- supersonic /
- flutter

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参考文献(24)

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